[1] His mother was a daughter of Simon Koshland, one of the most successful wool merchants in San Francisco.
[3] In 1910, Haas graduated from the University of California, Berkeley, where he was a member of the Order of the Golden Bear.
[4] Haas served in the U.S. Army Field Artillery during World War I.
In 1928, he became president and was in that position until 1955; thereafter, he was chairman until 1970 and remained active in company affairs until his death in 1979.
[4] Haas' tenure and dedication at Levi Strauss – along with that of his business partner and brother-in-law Daniel E. Koshland Sr.[5] – is widely credited with "saving" the company, leading it through the Great Depression, racial integration at its factories, the global popularization of the Levi brand, and the creation of the Levi Strauss Foundation.